JP2016161828A - Map information display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a map information display device capable of estimating an area suitable for a purpose from specific position information on map information and displaying the estimated area on the map information.SOLUTION: A map information display device according to an embodiment causes, according to purpose information selected by a user, position information corresponding to the purpose information to be displayed on map information. A storage unit stores an area estimation algorithm for estimating an area according to a predetermined geographical rule related to the map information, on the basis of extraction position information extracted from information source according to a certain attribute. An arithmetic unit selects an area estimation algorithm according to the purpose information, and executes the selected area estimation algorithm. An output unit outputs the estimated area obtained by executing the area estimation algorithm, together with the map information to a user-side terminal.SELECTED DRAWING: Figure 1

Description

  Embodiments according to the present invention relate to a map information display device.

  There is a mashup technique in which other information is superimposed and displayed on specific position information on a map. In the conventional mashup technology, the position information is displayed as specific position information indicated by latitude and longitude. In addition, in order to display an area within a certain range from specific position information, it is necessary to register an area associated with the position information in advance. For example, in a certain site, it is possible to present a list of stores and areas near the current position of the user. However, it has been necessary to register these store and area information in advance in the server of the site in association with the position information.

Japanese Patent No. 4906705

  Provided is a map information display device capable of estimating an area suitable for a purpose from specific position information on map information and displaying the estimated area on map information.

  The map information display device according to the present embodiment is a map information display device that displays position information corresponding to the purpose information on the map information according to the purpose information selected by the user. The storage unit stores an area estimation algorithm for estimating an area according to a predetermined geographical rule regarding map information based on extracted position information extracted according to a certain attribute from an information source. The calculation unit selects an area estimation algorithm according to the purpose information, and executes the selected area estimation algorithm. The output unit outputs the estimated area estimated by the execution of the area estimation algorithm to the user side terminal together with the map information.

The block diagram which shows an example of the structure of the map information display apparatus 10 by 1st Embodiment, and its periphery. The flowchart which shows an example of operation | movement of the display apparatus 10 in case objective information is a tsunami disaster area. The image figure which displayed the estimation area superimposed on the map information in the terminal 20. The flowchart which shows an example of operation | movement of the display apparatus 10 in case objective information is a liquefaction area. The image figure which displayed the estimation area superimposed on the map information in the terminal 20. The flowchart which shows an example of operation | movement of the display apparatus 10 in case objective information is a busy area. The image figure which displayed the estimation area superimposed on the map information in the terminal 20.

  Embodiments according to the present invention will be described below with reference to the drawings. This embodiment does not limit the present invention.

(First embodiment)
FIG. 1 is a block diagram showing an example of the configuration of the map information display device 10 according to the first embodiment and its surroundings. The map information display device 10 is communicably connected to the user side terminal 20, the map information server 30, and the position information server 40 via the network 1.

  The network 1 may be, for example, either a local area network (LAN) or a wide area network (WAN) such as the Internet. The network 1 may be a wired or wireless network.

  The map information display device 10 (hereinafter, also simply referred to as the display device 10) is a device that displays (mashup-displays) an estimated area corresponding to the target information selected by the user on the map information. . The display device 10 is configured as a server, for example, and includes a storage unit 11, a calculation unit 12, and an output unit 13.

  The user of the location information server 40 is different from the users of the user terminal 20 and the display device 10. In order to distinguish between the user of the location information server 40 and the user of the user side terminal 20, hereinafter, the user of the location information server 40 is referred to as U40, and the user of the user side terminal 20 is referred to as U20.

  The storage unit 11 stores at least a plurality of area estimation algorithms 1 to 4 and attribute information.

  The area estimation algorithm is a program used to estimate an area based on extracted position information extracted from an information source of the position information server 40 (for example, a specific site on the Internet). The area estimation algorithm includes a predetermined geographical rule regarding map information, and defines (estimates) a certain area from the extracted position information according to the geographical rule. In the present embodiment, the geographical rule is a rule that limits an area included in the map information. For example, the geographical rule defines an area or the like that is limited within a predetermined distance range from the point of the extracted position information based on the map information as an estimated area.

  In the present embodiment, when the extracted position information indicates the position of the tsunami-affected area, the display device 10 estimates the area within the predetermined distance range and the predetermined altitude range from the position of the afflicted area as the damaged area. To do. The display device 10 displays the estimated damaged area on the map information.

  The attribute information is information indicating a reference for extracting (searching) the extracted position information from the information source of the position information server 40. The information source is obtained from a predetermined site on the Internet, for example, and includes user position information indicating a position when the user U40 of the site uses the site. When the location information server 40 is a general posted information service on the Internet or a site such as SNS (Social Networking Service), there is a lot of unnecessary information (noise) in the information source posted by an unspecified number of users U40. include. Therefore, attribute information is required to extract (search) necessary information from such an information source.

  The attribute information includes, for example, a keyword included in the purpose information, a time when the user U40 used the location information server (site) 40, user location information, the number of pieces of information including the same content in the location information server 40 (number of posts), The standard of reliability of the location information server (site) 40 or the user U40 is shown. Specifically, the attribute information may be a keyword related to the purpose information selected by the user U20. The attribute information may be information that limits the time when the user U40 uses the location information server (site) 40 to a predetermined period. The attribute information may be information that limits the user location information of the information source to a predetermined area. The attribute information may be information in which the number of posts including the same content is limited to a predetermined value or more. Further, the attribute information may be information limited to a specific site with high reliability or a specific user U40 with high reliability. Note that attribute information such as keywords, a predetermined period, a predetermined area, a threshold for the number of posts, and a URL of a specific site are registered in advance in the storage unit 11 in association with the area estimation algorithm.

  The storage unit 11 includes a plurality of attribute information. The attribute information used for extraction is defined in advance in the area estimation algorithm. Therefore, when an area estimation algorithm is selected, attribute information used for extraction is also determined.

  The computing unit 12 selects an area estimation algorithm according to the purpose information input by the user U20, and executes the selected area estimation algorithm. Moreover, the calculating part 12 extracts user position information from the information source of the position information server 4 according to the attribute information specified by the area estimation algorithm. The extracted user position information is used as the extracted position information for area estimation. The computing unit 12 estimates the area according to the geographical rule defined in the area estimation algorithm based on the extracted position information.

  The output unit 13 is, for example, an input / output interface connected to the network 1, and outputs an estimated area estimated by execution of the area estimation algorithm to the user-side terminal 20.

  The user-side terminal 20 (hereinafter also simply referred to as the terminal 20) is a terminal operated by the user U20 who intends to use the display device 10. The terminal 20 may be a mobile terminal such as a personal computer or a smartphone.

  The map information server 30 is a server that stores and provides map information. For example, the map information server 30 may be a geographic information system (GIS) that can be used on the Internet. The map information stored in the map information server 30 is used when the estimated area is defined in the display device 10. Further, the map information is used for displaying the estimated areas in a superimposed manner (mashup display).

  The location information server 40 may be a server that stores information in a posted information service on the Internet or a site such as SNS (Social Networking Service). Information stored in the position information server 40 is used as an information source as described above.

  Next, the operation of the display device 10 according to the present embodiment will be described.

  FIG. 2 is a flowchart showing an example of the operation of the display device 10 according to the first embodiment. In this specific example, it is assumed that the user U20 desires to display the tsunami-affected area (estimated area) on the terminal 20 in the map information.

  First, the user U20 accesses the display device 10 using the user terminal 20. The user U20 selects a tsunami-affected area as purpose information on the display device 10 (S10). The selection operation may be a mouse click attached to the terminal 20, an input to the keyboard, a tap on the touch panel, or the like.

  Next, the display device 10 receives the selection of the tsunami-affected area and executes an area estimation algorithm corresponding to the tsunami-affected area (S20). The calculation unit 12 obtains attribute information from the storage unit 11 based on the area estimation algorithm. The calculation unit 12 obtains the extracted position information from the information source of the position information server 40 using this attribute information (S22). For example, the calculation unit 12 searches for a posting related to the keyword “tsunami” on a posting information site (for example, Twitter (registered trademark)). Further, the calculation unit 12 limits the posting of the tsunami to information posted within a predetermined period immediately after the earthquake, and sets the position of the poster (user U40) to a predetermined distance (predetermined area) from the epicenter. limit. Furthermore, the calculating part 12 restrict | limits the information (for example, the number of retweets) including the same content regarding a tsunami to the information which exceeds predetermined value. In this way, the calculation unit 12 extracts specific user position information that matches the attribute information from the information source of the position information server 40 as extracted position information. The calculation unit 12 may narrow down the extracted position information by limiting the information source using a plurality of attribute information, or may add information obtained from the information source using the attribute information to the extracted position information. Good.

  Next, the calculating part 12 acquires map information from the map information server 30 (S30). For example, the calculation unit 12 obtains map information from a geographic information system provided by Google (registered trademark), for example.

  Next, the calculating part 12 prescribes | regulates an estimation area from extraction position information and map information according to the geographical rule prescribed | regulated by the area estimation algorithm (S40). For example, the geographical rule is based on terrain information included in the map information, is within a predetermined distance from the point of the extracted position information, has an altitude lower than the point of the extracted position information, It stipulates that it is on the sea side from the point. The calculation unit 12 searches the map information for an area that conforms to these geographical rules, and defines an area that conforms to these geographical rules as an estimated area.

  Next, the output unit 13 outputs information on the estimated area so that the estimated area is displayed over the map information on the terminal 20 (mashup display) (S50).

  FIG. 3 is an image diagram in which an estimated area is displayed on the map information on the terminal 20. The estimated area A is displayed as a mashup on the map information M as a tsunami-affected area. P1 to P3 indicate points of extraction position information.

  Thus, the display device 10 according to the present embodiment can provide the user U20 with an area according to the geographical rule as an estimated area, using the extracted position information extracted based on the attribute information. Thereby, for example, the display device 10 displays not only the specific position information where the occurrence of the tsunami is reported, but also the area where the tsunami is estimated to be generated or the area where the tsunami is estimated to be generated is displayed on the map information. Can be made.

(Second Embodiment)
In the second embodiment, the display device 10 estimates an area (hereinafter, also referred to as a liquefaction area) where soil liquefaction occurs after an earthquake. Therefore, in the second embodiment, the area estimation algorithm and the attribute information are different from those in the first embodiment. However, the basic configuration of the display device 10 may be the same as the configuration shown in FIG.

  In the second embodiment, the geographical rule defined in the area estimation algorithm is based on the geological information included in the map information. Areas having similar geology are within a predetermined distance range from the point of the extracted position information. It is defined as an estimated area.

  The attribute information may be, for example, a keyword “liquefaction” or information limited to postings within a predetermined period from the time immediately after the earthquake. The attribute information may be information that limits the position of the poster (user U40) to a predetermined distance from the epicenter. Further, the calculation unit 12 may be a threshold value of the number of information (for example, the number of retweets) including the same content regarding liquefaction. Alternatively, the attribute information may be based on the reliability of the position information server 40 or the reliability of the poster. For example, when the location information server 40 is a public institution site, the calculation unit 12 determines that the information on the site is highly reliable, and adds the information in the site to the extracted location information. Further, for example, when the user of the location information server 40 belongs to a public institution, the calculation unit 12 determines that the information posted by the user is highly reliable, and the information posted by the user Is added to the extracted position information. In this way, the calculation unit 12 can obtain the extracted position information from the information source of the position information server 40.

  Next, the operation of the display device 10 according to the second embodiment will be described.

  FIG. 4 is a flowchart showing an example of the operation of the display device 10 when the target information is a liquefaction area. In this specific example, it is assumed that the user U20 desires to display the liquefaction area (estimated area) on the terminal 20 in the map information.

  First, the user U20 accesses the display device 10 using the terminal 20. The user U20 selects a liquefaction area as target information on the display device 10 (S11).

  Next, the display device 10 receives the selection of the liquefaction area and executes an area estimation algorithm corresponding to the liquefaction area (S21). The calculation unit 12 obtains attribute information from the storage unit 11 based on the area estimation algorithm. The calculation unit 12 obtains the extracted position information from the information source of the position information server 40 using this attribute information (S23). For example, the calculation unit 12 searches for postings related to the keyword “liquefaction” on a posting information site (for example, Twitter (registered trademark)). Further, the calculation unit 12 limits the posting of the liquefaction to information posted within a predetermined period from the time immediately after the earthquake, and limits the position of the poster (user U40) to a predetermined distance from the epicenter. Furthermore, the calculating part 12 restrict | limits the information (for example, the number of retweets) including the same content regarding a tsunami to the information which exceeds predetermined value. Furthermore, when the position information server 40 is a public institution site, the calculation unit 12 adds information in the site to the extracted position information. When the user of the location information server 40 belongs to a public institution, the calculation unit 12 adds information posted by the user to the extracted location information. In this way, the calculation unit 12 extracts specific user position information that matches the attribute information from the information source of the position information server 40 as extracted position information.

  Next, the calculating part 12 acquires map information from the map information server 30 (S31). The map information may be the same as that described in step S30 in FIG.

  Next, the calculating part 12 prescribes | regulates an estimation area from extraction position information and map information according to the geographical rule prescribed | regulated by the area estimation algorithm (S41). For example, the geographical rules include being within a predetermined distance from the point of the extracted position information and being similar to the geology of the point of the extracted position information. The calculation unit 12 searches the map information for an area that conforms to these geographical rules, and defines an area that conforms to these geographical rules as an estimated area.

  Next, the output unit 13 outputs information on the estimated area so that the estimated area is displayed on the map information on the terminal 20 (S51).

  FIG. 5 is an image diagram in which an estimated area is displayed on the map information on the terminal 20. The estimated area A is mashed up on the map information M as a liquefaction area. P11 to P13 indicate points of extraction position information.

  As described above, the display device 10 according to the second embodiment can provide the user U20 with an area according to a geographical rule as an estimated area using the extracted position information extracted based on the attribute information. Thereby, for example, the display device 10 can display not only the specific position information where the occurrence of the liquefaction phenomenon is reported, but also the area where the liquefaction phenomenon is estimated to be displayed on the map information.

(Third embodiment)
In the third embodiment, the display device 10 estimates an area where people are concentrated and crowded (hereinafter also referred to as a crowded area). In the third embodiment, the area estimation algorithm and the attribute information are different from those in the first and second embodiments. However, the basic configuration of the display device 10 may be the same as the configuration shown in FIG.

  In the third embodiment, the geographical rules defined in the area estimation algorithm include a predetermined number or more of extracted position information (that is, user position information (number of posts)) based on structure information included in map information. An area of a certain structure is defined as an estimated area. Further, the geographical rule may also define an area having structure information continuous (connected) to structure information including a predetermined number or more of extracted position information as an estimated area.

  The attribute information may be, for example, a keyword such as a tourist destination name or an event name. The attribute information may be information limited to postings within a predetermined period before and after the purpose information is input (a time zone close to the time when the object information is input). The attribute information may be information that limits the position of the poster (user U40) to a predetermined distance from a sightseeing spot or an event venue. Further, the calculation unit 12 may be a threshold of the number of information (for example, the number of retweets) including the same content regarding a sightseeing spot or an event. Thereby, the calculation unit 12 can obtain the extracted position information from the information source of the position information server 40. In the third embodiment, the location information server 40 may be, for example, a tourist information site, an event information site, or the like.

  Next, the operation of the display device 10 according to the third embodiment will be described.

  FIG. 6 is a flowchart showing an example of the operation of the display device 10 when the purpose information is a busy area. In this specific example, it is assumed that the user U20 desires to display a busy area (estimated area) on the terminal 20 in the map information.

  First, the user U20 accesses the display device 10 using the terminal 20. The user U20 selects a busy area as the purpose information on the display device 10 (S12).

  Next, the display apparatus 10 receives the selection of a busy area and executes an area estimation algorithm corresponding to the busy area (S25). The calculation unit 12 obtains attribute information from the storage unit 11 based on the area estimation algorithm. The calculation unit 12 obtains the extracted position information from the information source of the position information server 40 using this attribute information (S26). For example, the calculation unit 12 limits the information posted within a predetermined period before and after the purpose information is input in the tourist information site. Further, the calculation unit 12 limits the number of pieces of information (for example, the number of retweets) including the same content regarding the sightseeing spot or the event to a value exceeding a predetermined value. Thereby, the calculating part 12 extracts the specific user position information suitable for the said attribute information from the information source of the position information server 40 as extraction position information.

  Next, the calculating part 12 acquires map information from the map information server 30 (S32). The map information may be the same as that described in step S30 in FIG.

  Next, the calculating part 12 prescribes | regulates an estimation area from extraction position information and map information according to the geographical rule prescribed | regulated by the area estimation algorithm (S42). In the geographical rule, an area of a structure including a predetermined number or more of extracted position information is set as an estimated area. For example, when the structure is a road and there is a predetermined number or more of extracted position information (number of posts) on the road, it can be estimated that the road is crowded with many people. Accordingly, the calculation unit 12 sets a road including a predetermined number or more of extracted position information as an estimated area. Further, the geographical rule is in the vicinity of a structure including a predetermined number or more of extracted position information, and other structures connected to the structure may be included in the estimation area. For example, if a structure is a road and there is a predetermined number or more of extracted position information (number of posts) on that road, there are many event venues near that road and connected to that road. It can be estimated that people are busy. The calculation unit 12 searches the map information for an area that conforms to these geographical rules, and defines an area that conforms to these geographical rules as an estimated area.

  Next, the output unit 13 outputs information on the estimated area so that the estimated area is displayed on the map information on the terminal 20 (S52).

  FIG. 7 is an image diagram in which an estimated area is displayed on the map information on the terminal 20. The estimated areas A1 and A2 are displayed as mashups on the map information M as busy areas. P21 to P23 indicate points of extraction position information. The estimated area A1 is a result estimated that the road is busy. The estimation area A2 is a result of estimation that the road and the structures connected to the road are busy. The display device 10 may output either one or both of the estimation areas A1 and A2 to the terminal 20. In addition, the display device 10 may allow the user U20 to select one of the estimation areas A1 and A2.

  As described above, the display device 10 according to the third embodiment can provide the user U20 with an area according to a geographical rule as an estimated area using the extracted position information extracted based on the attribute information. Thereby, the display apparatus 10 can display on the map information not only the specific position information where people gather and are crowded, but also the area estimated to be crowded.

  The display device 10 may be set or selectable in more detail by the user U20 with respect to purpose information, geographical rules, attribute information, and the like. Thereby, since the area estimation algorithm is customized by the user U20, the display device 10 can display the estimation area desired by the user U20.

  At least a part of the area estimation algorithm in the display device 10 according to the present embodiment may be configured by hardware or software. When configured by software, a program for realizing at least a part of the function of the area estimation algorithm may be stored in a recording medium such as a flexible disk or a CD-ROM, and read and executed by a computer. The recording medium is not limited to a removable medium such as a magnetic disk or an optical disk, but may be a fixed recording medium such as a hard disk device or a memory. Further, a program that realizes at least a part of the function of the area estimation algorithm may be distributed via a communication line (including wireless communication) such as the Internet. Further, the program may be distributed in a state where the program is encrypted, modulated or compressed, and stored in a recording medium via a wired line such as the Internet or a wireless line.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Network, 10 ... Map information display apparatus, 20 ... User side terminal, 30 ... Map information server, 40 ... Location information server, 11 ... Memory | storage part, 12 ... Calculation unit, 13 ... output unit

Claims (9)

According to the purpose information selected by the user, a map information display device that displays position information corresponding to the purpose information on the map information,
A storage unit for storing an area estimation algorithm for estimating an area according to a predetermined geographical rule regarding the map information based on extracted position information extracted according to an attribute from an information source;
A calculation unit that selects the area estimation algorithm according to the purpose information and executes the selected area estimation algorithm;
The map information display apparatus provided with the output part which outputs the estimated area estimated by execution of the said area estimation algorithm to a user side terminal with the said map information.   The said geographical rule prescribes | regulates the area containing the point contained in the said extraction position information as said estimation area based on the topographic information, geological information, or structure information contained in the said map information. Map information display device.   The geographical rule defines, as the estimated area, an area within a predetermined distance range and a predetermined altitude range from the point of the extracted position information based on terrain information included in the map information. The map information display device according to claim 2.   The geographical rule defines, as the estimated area, an area having similar geology within a predetermined distance range from a point of the extracted position information based on geological information included in the map information. Item 3. The map information display device according to Item 2.   The map according to claim 1, wherein the geographical rule defines an area of a structure having a point of the extracted position information as the estimated area based on the structure information included in the map information. Information display device. The information source is obtained from a predetermined site on the Internet, and includes user location information indicating a location when a user of the site uses the site,
The attribute includes a keyword included in the purpose information, a time when a user of the site uses the site, the user location information, the number of pieces of information including the same content posted on the site, or the site or the site 6. The map information display device according to claim 1, wherein the map information display device is information indicating any one of the criteria of the user's reliability. The attribute is a period of time when a user of the site uses the site within a predetermined period, the position of the user location information is within a predetermined area, and information including the same content posted on the site. The number is above a predetermined value,
The map information display device according to claim 6, wherein the calculation unit extracts the user position information that matches the attribute from the information source as the extracted position information. The attribute is that at least the site or a user of the site belongs to a public institution,
The map information display device according to claim 6, wherein the calculation unit extracts the user position information that matches the attribute from the information source as the extracted position information. The calculation unit is that a time when the user of the site uses the site is within a predetermined period, and the number of information including the same content posted on the site is a predetermined value or more,
The map information display device according to claim 6, wherein the calculation unit extracts the user position information that matches the attribute from the information source as the extracted position information.

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